Severus' campaigning has made significant gains by 210, despite Caledonian guerrilla tactics and purportedly heavy Roman casualties.

The Caledonians sue for peace, which Severus grants on condition they relinquish control of the Central Lowlands.

This is evidenced by extensive Severan era fortifications in the Central Lowlands.

The Caledonians, short on supplies and feeling their position becoming desperate, re-form their alliance with the Maeatae and join their fresh offensive.

Severus prepares for another protracted campaign within Caledonia.

He is now intent on exterminating the Caledonians, telling his soldiers: “Let no one escape sheer destruction, No one our hands, not even the babe in the womb of the mother, if it be male; let it nevertheless not escape sheer destruction.” (Dio Cassius (Xiphilinus) ‘Romaika’, Epitome of, Book LXXVI Chapter 15.)

A punitive expedition led by Severus' son Caracalla is sent out with the purpose of slaughtering everyone it encounters from any of the northern tribes.

Severus meanwhile prepares for total conquest but is already ill.